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Explanatory composition 400 words
In study, work and even life, many people sometimes write compositions, which can be divided into narrative, explanatory, practical and argumentative according to different genres. So how to write a general composition? The following are four 400-word expositions I have compiled for you. Welcome to share.

There are many flowers in my family, including asparagus, Yushu, jasmine and orchid ... among them, ginkgo begonia is my favorite. Because it has strong vitality, plump leaves, stout stems and bright flowers. Looking from a distance, it is lush and tall.

The stem of Ginkgo begonia is dark green, and it grows stronger as it goes down, like a dark green bamboo. Its stem nodes are convex and brown. Look carefully, there are many white spots on each stem node.

On each stem node, there is a bud like a bamboo shoot. When the bud grows up, it becomes a light green translucent leaf. Small leaves grow into handfuls of big, pointed fans. There are white spots like silver stars on the leaves, and tree-like veins support the leaves. The underside of the leaves is purple. The new green leaves above are steep upward, and the old leaves droop downward. The leaves below are very dense, while the leaves above are sparse.

There is a cluster of small flowers hidden under the dense leaves. Flowering stems grow from the middle of stems and leaf stems. The lower the stem, the darker the color. Finally, a pink flower grows, drooping and opening. There are three pink petals around a green thing at the top of the flower, and five pink petals around an egg-yellow fluffy flower at the bottom, just like lanterns hanging on the Lantern Festival.

How beautiful the silver star begonia is! Who can not love such a beautiful thing!

Today, I went to see the lotus with my parents and grandparents.

When we arrived at the place to see the lotus, I first found that most of the lotus flowers were not in bloom, and only a few had already opened.

Now, I'll give you a riddle. There are some lilies like roses growing in the river, and fruits grow in pods like yellow honeycombs. There are many fruits the size of olive stones, both fresh and dried. Can you guess what it is? Hehe, needless to say, as we all know, this must be the lotus.

Mom and dad rented a boat, and we went to the middle of the lake to see lotus flowers, some of which were light yellow, some were deep red, some were dark yellow, some were white and some were pink. They are all supported by fat lotus leaves, standing quietly on them like a shy girl. Some spread a few petals, and some spread them all. Showing pale yellow lotus flowers, some are still budding flowers and bones.

Some of these lotus flowers are lifted out of the water by lotus branches about a foot high, so elegant; Some are tightly attached to the lotus leaves, so elegant; Others float directly on the water, so carefree.

Lotus is not only beautiful, but also has many functions. It is a good browser for industrial wastewater and can absorb a lot of harmful substances. As the ancients said, mud never sticks. This sentence is wrong. Lotus grows in the soil and has many toxic substances on its surface. So when eating lotus seeds, be sure to wash the surface before eating! However, why can the lotus maintain its noble image? The answer is that there is a layer of wax on the surface of lotus, which can not be polluted by muddy water.

It's past two o'clock and I have to go home, so I have to reluctantly watch the lotus pond go home.

Explaining the composition 400 words 3 oranges are a kind of fruit. I think everyone must be familiar with it! But you have observed it carefully, have you understood it? Let's get close to the orange and have a close contact with it.

From the appearance, Mr. Orange's skin is very good, smooth and delicate, and he dyes his whole body orange like a clown, which makes people want to play with him very much.

Look! When Mr. Orange is tired and hot, he is taking off his coat. He is taking off his thick orange coat to reveal a snow-white sweater, which is very soft. And some places are thicker, and some places are thinner. Through the thin place, you can vaguely see the thin texture, probably the meat flap.

This sweater is difficult to take off. Let me help you. It took me a long time to get rid of the sweater, leaving nothing behind. Wow! The orange flesh finally came out. It's really beautiful. Shining in the light, crystal clear.

I carefully tore it into pieces, and then slowly peeled off the thin skin, shiny orange meat appeared in front of my eyes. Even if you squeeze it gently, the juice will flow out slowly like a stream.

I can't help but open my mouth and take a bite, hmm. . . . The sweet and refreshing juice suddenly flowed into my mouth and into my heart, and the sweetness in my mouth persisted for a long time. . . . . .

Explanatory article 400 words 4 "Buzz-"got up by himself. "You are a dead mosquito! Disturb my dream early in the morning! I hate you! I despise you! " I said that and then I lay down again. I grunted and stood up again. "Oh, you mosquito, dare to bite me? Who are you? So bold, look at me, come on, get an electric mosquito swatter! "

In this way, it triggered a human-mosquito war!

I quickly changed my clothes and grabbed the electric mosquito swatter to beat mosquitoes. Mosquitoes quickly dodged, circled me several times and flew away!

"Hum, know this great aunt! Let me meet you again, huh! You will be miserable! " I sat down at my desk, took out my homework and began to write. "Buzz-""Here we go again. Let's see what this girl can do to you. Oh, I called some partners! It doesn't matter, you will die sooner or later! " I waved the electric mosquito swatter. The mosquito flew away at once. I take this opportunity to dance wildly. I didn't expect a mosquito to die!

Seeing that the remaining mosquitoes were afraid to attack, I continued to sit there and do my homework. After a while, I stood up again, killing mosquitoes first, and then doing my homework!

I picked up the electric mosquito swatter to beat mosquitoes again. Unexpectedly, it actually hid in the past! Hide under the sofa. I went around the back of the sofa to fight mosquitoes and accidentally hit my leg on the sofa. Hearing this, the mosquito quickly fled to the bottom of the cupboard. This time, I crept to the front of the cabinet, and the electric mosquito swatter reached in, "scratching", and the last mosquito died.

"Yes! I won! "

A human-mosquito war that we won is over.